[syzbot] [wireless?] WARNING in cfg80211_bss_color_notify

[syzbot] [wireless?] WARNING in cfg80211_bss_color_notify

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    f6f25eebe05f Merge branch 'wangxun-fixes'
git tree:       net
console+strace: https://syzkaller.appspot.com/x/log.txt?x=11696b5c980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=bddb81daac38d475
dashboard link: https://syzkaller.appspot.com/bug?extid=d073f255508305ccb3fd
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10f9ec92980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1595fa84980000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/10564bcf8b3a/disk-f6f25eeb.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/6ac9b53e5395/vmlinux-f6f25eeb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/be417a358cca/bzImage-f6f25eeb.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d073f255508305ccb3fd@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 2855 at net/wireless/nl80211.c:19469 cfg80211_bss_color_notify+0x5f6/0x8b0 net/wireless/nl80211.c:19469
Modules linked in:
CPU: 0 PID: 2855 Comm: kworker/u8:9 Not tainted 6.9.0-syzkaller-05179-gf6f25eebe05f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: phy3 ieee80211_color_collision_detection_work
RIP: 0010:cfg80211_bss_color_notify+0x5f6/0x8b0 net/wireless/nl80211.c:19469
Code: 00 e8 ee b8 b7 fe 48 83 c4 08 89 c1 c1 f8 1f 21 c8 e9 08 fd ff ff e8 09 96 ba f6 90 0f 0b 90 e9 71 fb ff ff e8 fb 95 ba f6 90 <0f> 0b 90 e9 38 fb ff ff e8 ed 95 ba f6 c6 05 46 6f bb 04 01 90 48
RSP: 0018:ffffc9000ac37aa0 EFLAGS: 00010293
RAX: ffffffff8adbc735 RBX: 0000000000000000 RCX: ffff88802b693c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000ac37bb0 R08: ffffffff8adbc262 R09: 1ffffffff1f593bd
R10: dffffc0000000000 R11: ffffffff8af73d80 R12: 1ffff92001586f5c
R13: ffff888022f48000 R14: ffff888022f48cb0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001700 CR3: 0000000022822000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work kernel/workqueue.c:3267 [inline]
 process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3348
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3429
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>


---
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Re: [syzbot] [wireless?] WARNING in cfg80211_bss_color_notify

[syzbot]

syzbot suspects this issue was fixed by commit:

commit 4044b23781104801f70c4a4ec3ca090730a161c5
Author: Michael-CY Lee <michael-cy.lee@mediatek.com>
Date:   Fri Jul 5 07:43:46 2024 +0000

    wifi: mac80211: do not check BSS color collision in certain cases

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=130f62dd980000
start commit:   f6f25eebe05f Merge branch 'wangxun-fixes'
git tree:       net
kernel config:  https://syzkaller.appspot.com/x/.config?x=bddb81daac38d475
dashboard link: https://syzkaller.appspot.com/bug?extid=d073f255508305ccb3fd
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10f9ec92980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1595fa84980000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: wifi: mac80211: do not check BSS color collision in certain cases

For information about bisection process see: https://goo.gl/tpsmEJ#bisection